Definitely go the manual. The Smart Grinder sounds like a good choice based on reports. The only negative is that it doesnt always grind fine enough out of the box and may require a shim kit from Breville. If you buy from Cuppacoffee or Talk Coffee they provide the shim kit with the grinder.
As for the GEE vs the Sunbeam, that is a little harder to answer. The GEE is more expensive but with more impressive features such as PID and adjustable pre-infusion.
The GEE is stilll quite new and there have not been too many user reports on it. Ive had a good look at it, inside and out and it seems very well put together. Would better suit someone who wants to make coffee their hobby because of the tweakability.
The Sunbeam is a solid machine but there have been many well documented reliability issues. That may not be a fair comment, Im sure Sunbeam have sold a bucket load of them and you mostly here about those who have had problems.
If it were me Id for the GEE + Smart Grinder.